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Biology 107
General Biology
Pat Akrabawi
Michael Cullen
Brian Ernsting
Joyce Stamm
Introduction to General Biology
As a result of this lecture and the assigned reading, you
should understand the following:
Properties of Life:
a.
b.
c.
d.
e.
f.
g.
order
evolutionary adaptation
response to the environment
regulation/homeostasis
energy utilization
growth and development
reproduction
Some Properties of Life
Examples of Order
Examples of Reproduction
Introduction to General Biology
Themes in the Study of Life:
1.
Cells form the simplest, independent units of
organization of living organisms. Cells arise from other
cells.
2.
Biological information is carried in DNA.
3.
Life is associated with emergent properties. These
properties are the consequence of the hierarchies of
structure.
4.
Structure and function are correlated at all levels of
biological organization.
Hierarchy of Biological
Organization
Atoms
Molecules
Organisms
Organ Systems
Population
Community
(organelles)
CELLS
Organs
Tissues
Ecosystem
Biosphere
The Hierarchy of Biological Organization
Biologists Study Life on Many Different Scales of Size and Time
Introduction to General Biology
5.
Living organisms regulate their systems.
6.
Organisms do not live in isolation, they interact with
their environment (including other organisms) to
survive.
7.
All organisms transform energy to do work.
8.
Living things are unified and diverse.
Introduction to General Biology
9.
Evolution is the central theme of biology. It explains
both the unity and diversity of life.
10. Science involves repeated observations and testable
hypotheses.
11. Science and technology are human endeavors.
Review
of
Unifying
Themes
in
Biology
Idealized Version of the Scientific Method
Applying Hypotheticodeductive Reasoning to
a Campground Problem
Controlled experiments to test the hypothesis that selective predation affects
the evolution of guppy populations